The next morning,
Earth caste medical lab
Olina groaned and tried to move her arms. Her head felt like a grox was sitting on it. She couldn't move her arms, something was binding them down. She lifted her head up to see that she was strapped to something resembling an operating table. The table, and her body, were upright. She was clad in the same grey clothing she wore when she first woke on the sip.
When she saw the small group of Tau near here, her eyes narrowed. She started to remember some sort of gas being pumped into her cell right before the door opened and she was brought out.
"What do you have in mind for me, you filth?!" she screamed. "I will tell you nothing! Cut me to pieces if you wish, you will learn nothing from me! None of my sisters will give in to you either!"
One of the xenos cocked its head.
"There is no need for such hostility. We will learn from each other." Hearing the being speak the same language back to her made her blood boil. How dare it imitate human speech, defile human words with its alien tongue. "Please, place the device."
One of the aliens she assumed to be a technician placed what appeared to be an open circlet onto her brow and closed it.
"Did you not hear me, your attempts to-"
"Begin."
Olina felt warm all of a sudden, as though she were draped in a blanket. Her anger seemed to be wiped away and her words died in her throat.
For some reason, her situation didn't distress her quite as much. She felt like a young novice again, sinking into her cot after a long day of training.
Olina had no idea why, but she felt comforted. Safe, even.
"Can you hear us?" The voice echoed in her mind liked they bounced off cathedral walls.
"Yes." Olina replied sleepily.
"What is your name?" one of the voices asked.
"I am...Olina." she replied.
"Thank you, Olina. Tell me, how long have you been one of these...sororitas?"
"I have been a fully fledged Sister...for four years now. I was...taken in as a child. I am currently twenty...three years old."
She stirred a little in her bindings. Something was off. Why couldn't she stop herself from telling him that? Why couldn't she make herself focus?
Why couldn't she think of a reason not to trust whoever she was speaking to?
"I have another question, Olina. Do you love your home world? Not just your birthplace, the birthplace of your species?"
"Of course." Olina wondered why he'd even ask. Wasn't the answer so obvious? "I'd do anything for holy Terra."
"Anything?"
She felt a twinge of fury rising inside her. Was her faith being questioned? Her devotion brought into doubt?
"I would fight...any enemy, anywhere, any time for the Throneworld."
"Understandable. My own people would fight to the death to protect T'au. What do you know of my people?"
"Only what is...needed...to kill them."
"Regrettable, but understandable. It is unfortunate that our two peoples war with each other. We have a great deal in common."
Olina felt a sudden glimmer of anger. Did this xenos imply they shared something with humanity? Imply that they were the same as her somehow?
"My people were fractious before we took to the stars. Our four castes were four different nations, unable to coexist. We would have destroyed ourselves, if not for the Ethereals and the Greater Good. We also know that your species is disunited as well. How many times have you and your sisters fought against your fellow humans?"
"Many...times."
"And how did it make you feel?"
"Furious. Furious and...anguished."
"Why anguished?"
"They were...ignorant. The God-Emperor did so much...to bring humanity together. They...rejected his gift...the very thing that would...save us from ourselves."
"Yet in spite of it all, you still love your species?" Olina nodded, a small tear rolling down her face.
"Yes...by Throne, I will love them no matter what. I will never stop fighting for humanity. Only in death does duty end."
She felt something rub against her cheek.
"We feel the same sorrow when facing our enemies. No matter how many of our own fall in battle, no matter how much we sacrifice in order to achieve unification, we are saddened by the need for such conflict. Every time we are able to peacefully integrate a species is something to be celebrated."
Olina started sniffling.
"Does that...does that mean...you do not hate me?" she asked.
"We have fought against you and you have claimed many of our people in battle. But no, we do not hate you. The Greater Good teaches us that hatred is a waste."
The door opened and she heard footsteps.
"You honor us with your presence." she heard one of the voices say.
"Please, continue," said the newcomer.
"Olina, we have brought the gift of the Greater Good to many of your people, and they have accepted it. They have seen that we have transcended the divisions that one plagued us and wish the same for their species. Will you accept our gift, Olina?"
Olina felt her emotions wrestling with each other. Unease, anger, gratitude. The voice spoke again.
"Olina, will you accept the Greater Good?"
The emotional war within her ended the moment he was silent again, with gratitude being the victor. That, and a sudden feeling of revelation.
The Tau had risen above the parts of themselves that humanity still struggled with. They had such advanced technology, integrated dozens of species into their empire without the need for war. Unlike the foul green skins, the vile tyranids and the ungrateful heretic, the Tau meant no ill will toward humanity.
On the contrary, they were setting an example for humanity to follow. If humanity embraced the Greater Good, it wouldn't just survive whatever the galaxy could throw at it, it would prosper.
What she and her sisters strove for, fought for, and bled for would be achieved.
"I...I...I accept." she said, a smile spreading onto Olina's face. "I accept the Greater Good." She felt like she was on fire as she said the words.
"Unbind her."
All of a sudden, Olina felt herself snap into full awareness and saw her straps being undone. Slightly dizzy, she stepped down, wincing as she felt her feet touch the cold floor. The group she saw when she first woke up was still present, but there was someone new among them as well, a figure in a toga guarded by what she recognized as Fire Warriors. That meant that this being was...
Olina bowed. She felt electrified by the newcomer's presence.
"Milord, you and your subordinates have my eternal gratitude for opening my eyes. I vow my allegiance to the Tau Empire from now till the moment of my death. I will live by the ideals of the Greater Good and do all in my power to assist you in bringing peace to the galaxy."
"Rise, Olina." the Ethereal said. She did so and suddenly felt a pang of sadness.
"Is something wrong?" asked the Ethereal.
"I'm...I'm sorry. I feel that everything you told me is right, that the Greater Good is the key to saving my species." She looked down. "But...I know nothing about it."
"That shall not be the case much longer." He gestured for a pair of Water caste officials to come forward. "These two will begin your re-education immediately." Olina beamed. "I am not worthy of your kindness."
As she walked off with her newly assigned instructors. Olina could imagine her sister's horror at her transformation had they witnessed it. She knew nothing of any daughters of the Emperor falling to the predations of chaos. By her knowledge, she was the first Sororitas to ever embrace a xenos ideology, to pledge her alliegence to an alien empire.
They would curse at her, insult her, tell her she deserved to die for falling under the Tau's influence. But they would only do so for so long.
She wouldn't be the only Sororitas the Tau enlightened for very long. And deep down, she knew she'd assist her new rulers in awakening her sisters however she could.